grand central terminal – I Ride The Harlem Line…

Can Crushing - Tesladownunder

Can crushing (1000 joule) 2004 This is done by discharging a capacitor through a coil wrapped around an aluminium drink can. The high voltage capacitor is necessary to generate very high peak currents to induce currents in the can which magnetically heat and crush it.

Energy conversion | technology | Britannica.com

Energy conversion: Energy conversion, the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose.

Icemaker - Wikipedia

In 1867, Andrew Muhl built an ice-making machine in San Antonio, Texas, to help service the expanding beef industry before moving it to Waco in 1871. In 1873, the patent for this machine was contracted by the Columbus Iron Works, which produced the world's first commercial icemakers.

Crusher - Wikipedia

A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.

History of the United States Patent Office, Appendix

The Patent Office Pony A History of the Early Patent Office Appendix [Pg 207] APPENDIX SOME CIVIL WAR ERA PATENTS LIST OF ALL KNOWN PATENTS ISSUED BY CONFEDERATE PATENT OFFICE (What may have been issued after 01/01/1865 is unknown), where * precedes an alternate version in CSA Patent Office Reports